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run code in 200+ php & hhvm versions
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<?php var_dump( (int) 0x00ffffffffffffff ); var_dump( (int) 0x00fffffffffffffe ); var_dump( (int) 0x00fffffffffffffd );
Output for 4.3.0 - 7.1.10
int(72057594037927935) int(72057594037927934) int(72057594037927933)